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Fencer Intel
high 7.8

CVE-2011-5034 in the critical feed json

Apache Geronimo Hash Collisions Cause DoS

published 2011-12-30 14 y ago modified 2026-06-16 4 mo ago also GHSA-v3h8-rw48-h4gr , EUVD-2022-5271

cvss
7.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
80.6%
EPSS 80.6% chance of exploitation in 30 days, percentile 99.6%
public exploits
2
Metasploit, Exploit-DB

Summary

Apache Geronimo 2.2.1 and earlier computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters. NOTE: this might overlap CVE-2011-4461.

Patch / fix

  • maven org.apache.geronimo:geronimo 2.2.1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2011-5034 updated cvss 5.3

apache-geronimo: hash table collisions CPU usage DoS

  • Red Hat JBoss A-MQ 6 geronimo geronimo Red Hat JBoss Enterprise Application Platform 6 geronimo geronimo Red Hat JBoss Fuse 6 geronimo geronimo Red Hat JBoss SOA Platform 5 geronimo geronimo Red Hat OpenStack Platform 10 (Newton) opendaylight
    affected: no fix planned “Out of support scope”
  • Red Hat OpenStack Platform 13 (Queens) opendaylight
    affected: no fix planned “Will not fix”
  • Red Hat AMQ Broker 7 geronimo geronimo Red Hat Fuse 7 geronimo geronimo Red Hat JBoss Enterprise Application Platform 7 geronimo geronimo Red Hat JBoss Enterprise Application Platform Continuous Delivery geronimo geronimo Red Hat JBoss Web Server 3 geronimo geronimo Red Hat JBoss Web Server 5 geronimo geronimo
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. First public exploit (EDB-2012)
  2. Published

Exploit prediction

80.57% chance of exploitation in the next 30 days, higher than 99.6% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

CVSS scores

assigned by version score vector
NVD 2.0 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C

Affected packages

ecosystem package affected fixed in
maven org.apache.geronimo:geronimo
<2.2.1
2.2.1

Classification

Weakness
  • CWE-20 Improper Input Validation
  • CWE-400 Uncontrolled Resource Consumption

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.